A robust PID non-fragile control theoretic analysis to TCP/AQM network

Author

Xu Wencong ; Zhu Zijie ; Gao Xiang

Author_Institution

28 Res. Instn. of China Electron. Technol. Group Corp., Nanjing, China

fYear

2015

fDate

23-25 May 2015

Firstpage

2188

Lastpage

2192

Abstract

A robust PID non-fragile control mechanism is introduced in order to the control TCP/AQM network. The TCP/AQM linear system is described based on network dynamic model. A PID controller is proposed to adjust network queue congestion. The close-loop system transfer function is transferred to a high-dimension linear time-delay system. Consider the system disturbance and control structure error, the stability of time-delay system is analyzed, and a stability criterion is obtained with some conservatism. The sufficient condition is given to judge the stability of TCP/AQM based on linear matrix inequality (LMI). Then the controller parameters are solved by LMI. Finally, an example is given to illustrate the feasibility of the proposed method.

Keywords

closed loop systems; delays; linear matrix inequalities; linear systems; queueing theory; robust control; stability criteria; three-term control; transfer functions; transport protocols; AQM linear system; AQM network; LMI; TCP linear system; TCP network; active queue management; close-loop system transfer function; control structure error; high-dimension linear time-delay system; linear matrix inequality; network dynamic model; network queue congestion; robust PID nonfragile control theoretic analysis; stability criterion; Analytical models; Control systems; Mathematical model; Robustness; Stability criteria; Transfer functions; PID control; Robust non-fragile; TCP/AQM; linear matrix inequality (LMI);

fLanguage

English

Publisher

ieee

Conference_Titel

Control and Decision Conference (CCDC), 2015 27th Chinese

Conference_Location

Qingdao

Print_ISBN

978-1-4799-7016-2

Type

conf

DOI

10.1109/CCDC.2015.7162284

Filename

7162284